EMD SD80MAC
 |
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||
| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | General Motors Electro-Motive Division(EMD) |
| Model | SD80MAC, SD80ACe |
| Build date | 1995–1996 (SD80MAC), 2011– (SD80ACe) |
| Total produced | 30 (SD80MAC) + 7 (SD80ACe) |
| Specifications | |
|---|---|
| AAR wheel arr. | C-C |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
| Trucks | EMD HTCR II |
| Wheel diameter | 45 in (1,143 mm) |
| Length | 80 ft 2 in (24.43 m)(80MAC) 76 ft 6 in (23.32 m)(80ACe) |
| Height | 15 ft 5 in (4.70 m)(80MAC) 15 ft 10 in (4.83 m)(80ACe) |
| Loco weight | 420,000 lb (191,000 kg)(80MAC) 432,500 lb (196,000 kg)(80ACe) |
| Fuel capacity | 5,800 US gal (22,000 l; 4,800 imp gal)(80MAC) 4,900 US gal (19,000 l; 4,100 imp gal)(80ACe) |
| Prime mover |
EMD 20-710G3B-ES(80MAC) EMD 20-710G3C-ES(80ACe) |
| Engine type | V20 diesel |
| Cylinders | 20 |
| Transmission | diesel electric |
| Performance figures | |
|---|---|
| Maximum speed | 75 mph (121 km/h) |
| Power output | 5,000 hp (3.7 MW)(80MAC) 5,300 hp (4.0 MW)(80ACe) |
| Tractive effort | Starting (80MAC): 185,000 lbf (822.92 kN) Continuous (80MAC): 147,000 lbf (653.89 kN) Starting (80ACe): 191,000 lbf (849.61 kN) |
| Career | |
|---|---|
| Operators | Conrail, Norfolk Southern, CSX |
| Class | NS 7200–7228, Vale 101-107 |
| Disposition | All but 1 still in service on Norfolk Southern |
The SD80MAC is a 5,000 horsepower (3.7 MW) C-C diesel-electric locomotive. The model uses a 20-cylinder version of EMD's 710G prime mover, and is the first diesel locomotive to use a 20-cylinder engine since EMD's SD45 and SD45-2. It introduced a wide radiator housing similar to GE Transportation locomotives and the placement of dynamic brakes at the rear of the locomotive, which is a quieter location, features that were incorporated into the SD90MAC and SD70ACe models. Key spotting difference between the SD80MAC and SD90MAC include no external rear sandbox on the SD90MAC, rear number boards, and the placement of the front numberboards (above the cab windows on the SD80MAC, on the nose on most SD90MACs). The SD80MAC also has recessed red marker lights in the nose, an identifying feature unique to Conrail locomotives, although Norfolk Southern (NS) has removed the lights on most of their former Conrail engines.
All 30 units built were delivered to Conrail, and the 28 production units were completed, tested, and painted at the former Pennsylvania Railroad shops in Altoona, Pennsylvania. The other two units rostered by Conrail were EMD demonstrator units that were purchased outright Many consider the SD80MAC to be the last new locomotive Conrail purchased as a truly independent railroad. In the split of Conrail, Norfolk Southern received 17 units (numbered 7200–7216) while CSX got 13 (800–812, being renumbered to 4590–4602). The former Conrail units were the first AC traction locomotives owned by Norfolk Southern, with the railroad not ordering more until late 2008 with an order of General Electric's ES44AC.
...
Wikipedia